Stepwise current-driven release of attogram quantities of copper iodide encapsulated in carbon nanotubes.

Costa, Pedro M F J; Golberg, Dmitri; Mitome, Masanori; Hampel, Silke; Leonhardt, Albrecht; Buchner, Bernd; Bando, Yoshio · Nano Lett · 2008

basic_science · Level V

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Abstract

Encapsulated nanograins of copper iodide have been sequentially discharged from individual carbon nanotubes. Using a high resolution electron microscope equipped with a two-terminal electrical measurements unit, it was possible to manipulate the filling contents with precisions of a few attograms at a time. Changes in electrical resistance and filling ratio were followed in tandem and in real-time. It is shown that the pulsed release of the halide is directly related to the overall conductance of the filled nanotube.

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